import React, { Component } from "react";
import { PropTypes } from 'prop-types'
import Item from "../Item";
import "./index.css";

export default class List extends Component {

  // 对接收的props进行：类型、必要性的限制
  static propTypes = {
    todos: PropTypes.array.isRequired,
    updateTodo: PropTypes.func.isRequired,
    deleteTodo: PropTypes.func.isRequired
  }

  render() {
    const { todos, updateTodo,deleteTodo } = this.props;
    return (
      <ul className="todo-main">
        {todos.map((todo) => {
          return <Item key={todo.id} {...todo} updateTodo={updateTodo} deleteTodo={deleteTodo}/>;
        })}
      </ul>
    );
  }
}
